They were loosing their lands that's why we can choose a) weak leadership
Changes in the orbit of the earth caused the ice sheets to spread across Canada.
Answer:
d
Explanation:
Condensation nuclei are important because they form the basic building blocks of clouds. The condensation nuclei are tiny particles on which water vapor molecules form to create the most basic elements of clouds.
Later, other water molecules continue grouping around the original condensation nuclei and get larger to form raindrops.
